Add Yahoo as a preferred source to see more of our stories on Google. Tree branches in art throughout history follow geometric rules related to fractal geometry. 'Almond blossom' by Vincent van Gogh.

What makes a tree a tree? Or rather, why can we recognize trees in even quite abstract depictions when they are so varied in nature? Researchers have found a clue in the branches, and used math to ...

IRVINE, Calif. (KCAL/KCBS) - A California family has a holiday tradition unlike any other – they’ve been using the same Christmas tree for more than 40 years. Gina and Joe Mistretta bought their ...